There are a number of Doctors that specialise in fertility issues. Some that spring to mind are Dr Philip Ho (The Well Woman Clinic), Dr Alex Doo, Dr Stephenson, Professor Haines at Shatin ... just to name a few. I have had experience with Dr Ho and found him great, perhaps not good all the time with information flow ... but wee have a baby to show for it that we might not have otherwise had! I would use him again.